Copyright © 2007-2009 by Apple Inc. All Rights Reserved.
Quartz Composer Application
AnimatedCompositionLayer A basic application that demonstrates how to animate
composition input parameters on a Core Animation composition
layer through transactions.
Sample Requirements The project was created using the Xcode running under
Mac OS X 10.6.x or later. The supplied Quartz Composer
compositions were created using the Quartz Composer editor
running under Mac OS X 10.6.x or later.
About the sample The sample uses a Quartz Composer composition that generates
multiple circles. The composition is set up as a Core Animation
layer. As the user presses a mouse button, the Core Animation
generates new colors and sizes for the circles. These values
are used as the new input parameters for the composition, and
the user will see the changed sizes and colors of the circles.
Using the Sample Open the project using the Xcode editor which can be found
in /Developer/Applications. Build the project and run. Press
the mouse button to change the size and color of the circles.
Changes from Previous Versions n/a
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Please submit any bug reports about this example to